Car-roof.



D. W. HAWKSWORTH.

CAR ROOF.

APPLlcAnoN FILED FE.19, 1914.

Patented Apr. 23, 1918.

l WIr/958853. 9%/

f wf

n. W. HAwKswomH. CAR ROOF.

` APPLICATLON FILED FEB. 19 1914. Mmmm 2 'SHEETS-SHEET 2.

WIT/VESSES.;

MVM/ @20mm Anm/fm Batented Apr. 23, 1918.

aria orme@ DAVID W. I-IAWKSWORTH, OF DETROIT, MICHIGAN, ASSIGNOR TO HUTCHINS CAR ROOFING COMPANY, 0F DETBOII,MICHIGAN, A CURPRATION 0F MICHIGAN.

CAR-ROOF.

T0 all wlw/m t may concern:

Be it known that I, DAVID W. HAwKswon'rH, a citizen of the United States of America1 residingat Detroit, in the county of l/Vayne and State of Michigan, have invented certain new and useful Improvements in Car-Roofs, of which the following is a specication, reference being had therein to the accompanying drawings.

The invention relates to car roofs of the all metallic type, andvit is the object of the invention to obtain a relatively light construction, which is inexpensive to manufacture and is Veasily assembled.

In the drawings: f

Figure l is a cross section through a portion of the roof adjacent to 'the eaves;

Fig. 2 is a section in the plane of the ridge;

Fig.`3 is a section on line y-y Fig. l;

Figs. a and 5 are respectively a plan view and a side elevation of the securing means for the saddle-block and carline caps; and

Fig. 6 is a perspective view of the clip.

A are the carlines formed of beams of inverted T-section, and which extend from eave to eave. B are the side plates of the car frame, which are notched at C to receive the carline and have their upper edges in the plane of the roong sheets and of a corresponding angle. D are purlins7 preferably formed of channel beams in length to extend between the adjacent carlines, and having their ends E'flattened and riveted to the base flange of the carline. The top of these purlins are in the plane of the roofing sheets Vand are but a slight distance below the upper edge of the web of the carline. E are the roofing sheets having inverted U-edgeflanges F, the flanges ofthe adjacent sheets being nested and arranged over the web of the carline. Y i

To secure these sheets in position without interfering with the strength of the carline and also to secure the saddle-blocks, I have provided a bolt-engaging clip G. This is preferably a forging having parallellside plates embracing the web of the carline and riveted or otherwise secured at II in the line ofthe neutral axis of the beam. Above the R and a riveted head R2.

Specicaton of Letters Patent. lPafmtQd Alpi?, 239 191%, Appneauon inea February 1e, 1914. serial No. siaeia.

securing bolt Il. The shank of this bolt passes-through a slot M in the top of the clip and the shoulder of the head engages the underside of the clip, as shown. Thus a firm connection between the beam and the bolt is obtained without in any way weakening the former, as would be the case where the top edge of the beam is cutaway. The saddle-block N is secured in position by the bolt L and serves also to hold inposition a cap O which embraces the nested flanges of the roofing sheets. This cap is provided with laterally-extending foot-flanges I), which rest upon the sheet, and the cap is fur'- ther secured down to the carline by a clamp arranged near the eaves.` This clamp comprises a depending hook-bolt Q having a shouldered head Q engaging a boss It in the sheet and clamped thereto by a washer The depending hook is engaged with an inverted U-bolt S, which-embraces the web of the beam and passes through apertures in the base thereof,V being-provided with clampingnuts S at its Vlower end.

, pending hooks Q being passed through slots O in the nested flanges of the sheets and being laterally engaged with the U-bolts S. The nuts Si" are then tightened to draw the lJ-boltI downward, which securely clamps the sheets down upon the car-frame. `T he caps O are further held down by the saddleblocks N, which in turn are secured by the bolts L. Thus, without materially weakening the strength of the carline, the roofing sheets are securely held down, and this permits of using lighter beams for the carlines than with constructions where it `is necessary to cut away the beams for the securing means. The strength of the carline is not weakened materially since where the great` est stress occurs and where the saddleblocks are secured to the carline the securing means passes through the carline in its neutral axis, and since where the cap embracing the nested flanges of the roofing sheets is secured to the carline the stress upon the carline is materially less and the carline is oversize at this peint. The carlines and the pur lins being arranged within the same vertical space limits the thickness of the roof is lessened, which increases the available space Within the car.

To prevent danger of accidental disengagement of the bolt L, I preferably provide a gib T, which is inserted between the head of the bolt and the slotted side of the clip, and has its ends bent over at T to preventdisengagement.

Idihat I claim as my invention is l. A car roof, comprising carlines of inverted-T cross section, rooting sheets having inverted-U eclgeiianges in nested relation, embracing the web ot' the carline, caps embracing said nested flanges, and means for clamping said caps to the carlines compris- Y ing headed members and separate members attached to said carlines and connected with said headed members.

2. A car roof comprising a carline of inverted-T cross section,rooiing sheets having weather-proofing flanges adjacent yto said ca-rline, a cap embracing said iianges, and means for clamping said cap to said carline comprising a pair of coperating tie niembers detachably engaged with each other and respectively secured te said cap and carline.

3. In a car roof, the combination with a carlineof inverted-T cross section, of purlins v connected to lsaid carline within the CWI vertical space limits thereof, rooting sheets supported upon said purlins having marginal weatherprooling ilanges adjacent to said carline, a cap embracing said flanges, a depending hook on said cap, and a loop for engaging said hook, vertically adjustabljfv secured' to said carline.

el. In a car roof, the combination with a earline ot inverted-"l section, of rooting sheets having weather-prooiing marginal flanges adjacent to said carline, a cap em bracing said flanges, a U-bolt embracing the web of said carline and passing through apertures in the base thereof, and a depending hook upon said cap for engaging said U-bolt above said carline.

5. In a car roof, the combination with a carline of inverted-T cross section, of reeling sheets having marginal weather-prooiing flanges adjacent to said carline, a cap for embracing said flanges, a depending hook secured .to said cap above the web of said carline, a U-bolt embracing the web of said carline and engageable with said hook, the lower ends of said bolt passing through n apertures in the base flanges of Said carline and being threaded, and clamping nuts for Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents v Washington, D. G.

engaging the threaded ends below said carline.

6. In a ear root, the combination with a oalline of inverted-T section, roofing sheets and a saddle-block, oit a bolt for securing said saddle-block, having a head at its lower end, and a clip-plate secured to said carline near the neutral axis thereof, extending above the upper edge ot the web, and laterally slotted to form a seat ior the engagement of the head of said bolt.

7. In a caiI root, the combination with a carline of inverted-T section, ot means tor clamping a saddle-block thereto, comprising an inverted U-shaped clip embracing the web of the car-line and secured thereto near the neutral axis thereof, the portion of said clip above said carline being provided with a laterally-extending T-slot. and a bolt having a head engageable with said slot and a shank proj ecting upward into engagement with the saddle-block.

S. In a car roof, the combination with a carline or" inverted 'lsectioin of means for clamping a saddle block thereto comprising an inverted U-shaped clip embracing thel web of the carline and secured thereto near the neutral axis thereotn the portion of said clip above said cai-line being provided with a lateralijf-extending T-slot. a bolt having a head enga geable with said slot and a shank projecting upward into enga gement with the saddle-block, and a gib insertedy between the head of said bolt and the slotted side ol" the clip to lock said bolt troni accidental disengagement.

9. In a car roof, the combination with a carline of inverted 'l`-seetioi1, and roofing sheets having nested vfianges embracing the web of the cai-line, of a con'nnon means for attaching a saddle-bolt to said earline and for forming a support tor said nested iianges.

10. In a car root, the combination with a carline ot inverted T section and roofing sheets having nested flanges embracing the web of the carline, of a member embracing said nested tianges, and a clip embracing the web portion of the carliue having' a recess for the bolt head and providing a support for said nested iianges.

In testimony whereof I aliix ni'v signature in presence oit two witnesses.

DAVID W. IIAWKSIVORll-I.

Witnesses:

.Il/inns I). Banny, ARTI-inn D. PULvnn. 

